Binder for down-hanging sheets



May 6, 1930. H. DE LISLE v BINDER FOR DOWN-HANGING SHEETS Filed July 16.1928 V Patented May 6, 1930 PA E r OFFICE HAROLD L. inn IsLE, or.CHICAGO, ILLINOIS B NDERI'QR own-HANG NG SHEETS 7 Application filed July16,

These improvements relates to binders for down-hanging sheets, forexample blue prints and the like. The chief object is to provide astrong, durable and simple device for holding the sheets safely andsecurely and whereby the sheets may be inserted and removed in an easyand expeditious way, and whereby also they may be protected'againstabrasion and other injury. 1 1Q In the accompanying drawings Figure 1shows my improved holder almost in full face view or slightly inperspective; Fig. 2 shows. the device with the clamping member re moved;Fig. 3 shows part of a supporting rack with the binder on anenlargedscale held thereby; Fig. 4 is a section through the bindercomplete at the place 4:4 of Fig. 1; and F ig. 5 is a cross-sectionalview at the place of the line 55 of Fig. 2 featuring the I spring.

In practice the device is made of sheetmetal. The back 10 has at its topa normally forwardly-and-downwardly directed flange or turned-over partforming a recess or pocket extending from end to end of the back. Thebottom edge portion of the back is turned upon itself at 12 for strengthand finish.

Two bolts 13 are shown as being per manently held tothe back. To thisend a metal strip 14 formed as shown is spot welded to the back at theplace of each bolt, the piece 14 having a countersink 14L pressed intoit to accommodate the'bolt head and the back has a fin or projection 15(Fig. 4) pressed into the kerf of the bolt head. .Part of the bolt headis insection in Fig. 4. The bolt may not turn on its axis nor come awayfrom the back.

A trough-like clamping member 16 extends almost from end to end of theback. Its upper edge portion projects beneath the extension 11. Itslower end portion is turned over at 16 for strength and to provide arounded clamping edge. The bolts project through openings in the member16 and the knurled and kerfed nuts 17 and 18 hold the member 16 tightlyupon thematerial to be clamped.

Figs. 2 and 5 show a medially-arranged 50. substantially U-shaped leafspring 17. It is 1928. $eria1 No. 293, 069. spot-welded to the back andits free end presses'outward against the clamping mem ber 16. When thenuts are retracted the clamping member automatically releases thematerial.

The sheets as 18 are inserted so as to come against the bolts acting asstops.

-'The bar 19 may be of wooden dowel material, which is light and ofample strength. It extends from end to end of the device and is retainedat its ends by stops 120 partlycut and bentoutward from'the back.Itrests on the bolts.- A protective cover or shield 20, which may bepaper or fabric, hangs'upon the rod 19 and encompasses the sheetmaterial 18. Thecover has holes 19" (F ig. 2) at the bolts;

Therack 22 and vertical members 23 in Fig. 2 may be considered to beparts of a sliding support or a permanent support as de sired. The rackshows how many of these holders maybe colsely assembled. The binderissupported by integral ears or longitudinal extensions 2 1 of the backstrongly made by folding metal of the back upon itself. The

bottom edgeof these ears 24. is rounded. The

d of e lange 11 go under the folded metal at 24:. 1

I These binders may be of: any desired length, and there may bevariations in construction, size, arrangement etc. The crossseotionalviews are to the scale and size employed by me. On these cross-sectionsthe top' to bottom.

v The operator removes one of the binders from the rack and lays it andthe continued sheets upon a table. Retracting the nuts he can insert orremove sheets with little effort back is two and five sixteenths inchesfrom or loss of time. The cover 20' saves much wear 7 and tear of thesheet material.

I contemplate as being included herein all such changes, variations anddepartures from what is thus specifically illustrated and described asfall within the scope of the appended claims. I claim: 1

1. In. a'binder of the character described normally horizontallydisposed'for holding, down-hanging sheets,=the combination of a theclamping member being formed to provide a substantially deeplongitudinally-extending space between them for the accommodation ofsheets, the lower edge'portion of. the clamping member being oppositethe lower edge portions of theiback member, and means forforcing theclamping member toward the back member.

1 2. The combination of claim 1 hereof in which the back member issubstantially flat and the clamping member is bowed away from the backmember substantially on an are from top edge to bottom edge of theclamping memher and forming a trough-like construction ofthe clampingmember in cross View.

3. The combination of claim 1 hereoftogether with a substantiallyU-shaped leaf spring carried by the back member, extending upward alongthe back member to above the middle thereof in the up-and-downdirections and then downward into engagement with the clamping memberfor forcing the clamping member away from the back member.

4. The combination of claim l'hereof together with means carried by thedevice ,for

holding a protective cover adapted to overlie sheet material held by thebinder.

5. The combination of claim 1 hereof together with alongitudinally-extending bar between the back member and'the clampingmember for holding a cover adapted to protect sheet material held bythebinder.

6. The combination of claim 1. hereof in which the back member has anextension at each end adapted to be engaged by bindersupporting means. VV

V7. The combination of claim 1 hereof in which there are. transverseboltvmeans for forcing the clamping member toward the back member and alongitudinally extending bar resting on the bolt means and between saidmembers for holding sheet-covering material.

8. A binder of the character described normally horizontally disposedfor downhanging sheets, comprising a long and narrow substantially flatback member of sheet metal having its lower edge portion turned upwardagainst its body to provide a strong and rigid clamping seat and havingits upper edge portion turned downwardly-and-forwardly to provide aretaining extension, a long and narrow clamping member'bowed outward indirections away from theback member and having its upper edge portionloosely under said extension for rocking movements of the clampingmember relative I to the back member, the lower edge portion of theclamping member being turned upward to provide a strong clamping edge,bolt means, carried by the back member and extending in a directiontoward the clamping member, and nut means assoclated wlth sald boltmeans and with the clamping memberfor drawing the clamping member towardthe back member.

9; The combinatiolrwith a binder of the characterdescribed comprising along and other than the V sheet-clamping means for holding theprotective cover to the clamping means whereby the sheets may be removedwithout removing the cover.

I HAROLD L. DE 'LISLE,

